Existing evaporator and concentrator sets today are required to remove more water and produce higher solids than ever before. Incremental capacity improvement may be achieved in a variety of ways without major capital improvements. Evaporator capacity upgrades can be accomplished with 1) changes to everyday process operations, 2) adding washing capabilities, and 3) adding some heat transfer area. Several case histories are presented where mills achieved increased capacity with little or no new equipment.
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